5-mark practice questions — OCR A-Level Chemistry A (H432)
74 questions · chemistry · View as Markdown
How to answer
5-mark questions typically award marks for structured argument: two ideas + linked because + specific example + conclusion.
Sample questions
- Ethanol can be oxidised to form a carboxylic acid. Explain what is meant by the term carboxylic acid, name the carboxyli…
- Propanoic acid is a carboxylic acid used as a food preservative. Describe the key properties of carboxylic acids, includ…
- Methanol, ethanol and propanol are all members of the alcohol homologous series. A chemist is investigating the combusti…
- Hand warmers are single-use packets used by hikers in cold weather. When a hand warmer is activated, a chemical reaction…
- Propan-1-ol can be converted into 1-chloropropane, a haloalkane, in a substitution reaction. Explain how the functional …
- Buckminsterfullerene (C₆₀) is a fullerene used in medical drug delivery systems. Explain why C₆₀ has a low melting point…
- A student is making bread at home. Yeast is added to the dough mixture to help it rise. The student notices that the dou…
- A sports clothing company is developing a new fabric using condensation polymerisation. The polymer chain contains amide…